Cyclopropanation of N-Substituted 2-Oxochromene-3-carboxamides and 3-Oxobenzo[ f]chromene-2-carboxamides with Bromine-containing Zinc Enolate Prepared from α,α -Dibromopinacolin and Zinc.

Autor:	Shchepin, V. V., Silaichev, P. S., Vakhrin, M. I., Russkikh, N. Yu.
Předmět:	CYCLOPROPANE CYCLOALKANES PROPANE AMIDES ZINC compounds BROMINE ORGANIC cyclic compounds ORGANIC compounds
Zdroj:	Russian Journal of Organic Chemistry; Aug2005, Vol. 41 Issue 8, p1219-1221, 3p
Abstrakt:	Zinc enolate obtained from 1,1-dibromo-3,3-dimethylbutan-2-one reacted with N-substituted 2-oxochromene-3-carboxamides and 3-oxobenzo[ f]chromene-2-carboxamides affording 1-(2,2-dimethyl-propanoyl)-2-oxo-1a, 7b-dihydrocyclopropa[ c]chromene-1a-carboxamides and 1-(2,2-dimethylpropanoyl)-2-oxo-1a, 9C-dihydrobenzo[ f]cyclopropa[ c]chromene-1a-carboxamide as single isomers. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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